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Powerplants

turn energy (nuclear power, coal, oil, natural gas, biomass, and even garbage) into heat and steam and convert them into electricity with turbine generators. Nearly half of all U.S. electricity comes from burning coal and just over one-fifth is from nuclear fission; natural gas and oil account for nearly all the rest. Proponents of renewable energy believe solar power and wind turbines can someday replace many existing power plants. Futurists espouse hydrogen and nuclear.